Trends

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Authors: Mallory Evans, Hana Konradova, Tomás Nazal Paredes.
All data taken from the official NYPD’s Stop and Frisk database, unless otherwise noted.

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Targets

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Locations I

These density maps show which areas in 2010 versus 2015 were most targeted by the NYPD for Stop and Frisk.
While it may appear that there are more stops in 2015, the density of stops in 2010 is actually much higher and just more concentrated in smaller geographical areas.
In 2010, the NYPD overwhelmingly targeted East Harlem in Manhattan, but by 2015 they had decreased the frequency of stops overall, spread out more equally over the city, and shifted their main focus to the South Bronx.

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Locations II

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This interactive map allows exploration of individual characteristics of all 2015 stops.
Stops by Precinct: frequency of stops based on NYPD Precincts (and NYPD’s estimations). The 106th Precinct, located in Ozone Park, Queens, has the most overall stops within its boundaries, followed by the 40th Precinct in the South Bronx. Click to display precinct number and number of stops.
Race of Person Stopped: clusters of all stops. Click to zoom in and explore each stop with individual characteristics, including whether force was used.
Stops in Which an Arrest was Made: only stops resulting in arrest, displayed by race. Click to view individual characteristics, including whether force was used.
Stops in Which Contraband was Found: only stops in which something was found that is illegal to possess or sell, displayed by race. Click to view individual characteristics, including whether force was used.
Stops in Which a Weapon was Found: only stops in which any weapons were found, including pistols, rifles, assault weapons, knives or cutting instruments, machine guns, and others. Click to view individual characteristics, including whether force was used.
NYPD Precinct shapefiles came from the New York City Department of Planning.

Demographics I

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To examine how Stop and Frisk relates to the demographic and economic composition of targeted areas, these maps display information for each of New York’s Public Use Microdata Areas in 2010 and 2015 to compare between variables and over time.
The percent of the population that is black and median household income did not change much between 2010 and 2015, though the locations of NYPD stops did change somewhat.
It appears that in both 2010 and 2015, the NYPD targeted areas that had a higher proportion of black residents, and lower-income households. (For the maps on median household income, lighter areas indicate less income.)
PUMA shapefiles and data came from the United States Census Bureau and the American Community Survey.

Demographics II

These interactive maps allow exploration of the same demographic and economic characteristics from the static maps, but for each census tract in New York City in 2010 and 2015, and the number of NYPD stops in each tract.
While more detailed and varied between tracts than between PUMAs, it still appears that more NYPD stops occur in tracts that have a higher percentage of black residents, and lower median household income.
In each layer, click to view census tract, percent of the population that is black, median household income in U.S. dollars, and the number of NYPD stops.
Census tract shapefiles and data came from the United States Census Bureau and the American Community Survey (through American FactFinder).

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Media

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TOPICS ASSOCIATED WITH STOP & FRISK

Texts extracted from The New York Times Oped and Opinion pieces that mentioned Stop and Frisk from 2010 to 2016.
Progression in time shows how subjects and players changed around the Stop and Frisk practice.
Main subjects evolve to talk more seriously about violence and profiling, though race and the role of the police is present through time.
From 2013 the subjects veer towards the legal process and contingent elections.
There is a change from the preoccupation about communities and violence, to a growing focus on the formal political process around Stop and Frisk. More clear after 2014.
2016 sees the clear irruption of Donlad Trump as a figure of reference for the debate.

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Sentiment

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Sentiment extracted with the help of Bing sentiment dictionary and using The New York Times Oped and Opinion pieces that mentioned Stop and Frisk from 2010 to 2016.
Sentiment regarding Stop and Frisk in NYT OpEds and Opinion pages changes in time with a slight upward curve.
As protests and community attention to the NYPD practices intensified in 2012, the sentiment of articles took a deep plunge towards the negative. before this, the damning articles on the The Voice and the audio recordings of prejudiced cops produced a similar phenomenon.
As the constitutionality of the practices was put in question by the courts, the sentiment raised positively, probably lauding the initiative.
Later spikes are probably related to further dismantling of Stop and Frisk.
Considering the occurrences, the NYT seems to be, in general, opposed to Stop and Frisk. A position consistent with their traditionally left-leaning politics.
Where Mayor Bloomberg’s period has a lower sentiment in average, Mayor de Blasio’s term is characterized by a raising curve. This probably responds to what was previously observed; Bloomberg’s was the time of controversy and struggle, whereas de Blasio’s saw the dismantling of the practices.